nymaim | 47fc5cf5ff6ae1c791fb938f6226e0b294948224a01a016a0ad239955901b112

Resubmissions

11-01-2023 11:45

230111-nwry4sfg9v 10

11-01-2023 11:01

230111-m4j3ssbh37 10

Analysis

max time kernel
41s
max time network
43s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
11-01-2023 11:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

file.exe
Size

1.2MB
MD5

ed8d8752ec3b43c45613e4914bd12cf7
SHA1

d88c37ed4b28e430c591be82bef298faf69b40eb
SHA256

47fc5cf5ff6ae1c791fb938f6226e0b294948224a01a016a0ad239955901b112
SHA512

13a7140fec3bb5ff4749c60d5dce323928ef11e6f5c4142c76b8b00ce90d1f4b610b112b57b20d830968541f6568ecf184a5b2c9367eac593985d3bc8d42ab9d
SSDEEP

24576:q20IvUWFIQcM4jZPugTYQJy4jZK5r6zw7hoBgXC75ld1qSVpk:q2sWFPv41mgTM4FK5r6Pd1qapk

Score

10^/10

nymaim discovery trojan

Malware Config

Extracted

Family

nymaim

45.139.105.171

85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

Executes dropped EXE 3 IoCs

pid	Process
1896	file.tmp
1792	LitFiles137.exe
1704	HgkMv96G.exe

Loads dropped DLL 6 IoCs

pid	Process
752	file.exe
1896	file.tmp
1896	file.tmp
1896	file.tmp
1896	file.tmp
1792	LitFiles137.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Split Files\language\is-0IUIS.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-FB41K.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\is-E0O0H.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\is-ABRGH.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-GQATN.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-APTH7.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\is-HPV5A.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Split Files\unins000.dat	file.tmp
File created	C:\Program Files (x86)\Split Files\unins000.dat	file.tmp
File created	C:\Program Files (x86)\Split Files\is-C27HB.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-NB5A4.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-55QAC.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Split Files\LitFiles137.exe	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-V993R.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-O5IE2.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\is-LMAG3.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-R7Q6H.tmp	file.tmp

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1792	LitFiles137.exe
1792	LitFiles137.exe
1792	LitFiles137.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 1896	752	file.exe	27
PID 752 wrote to memory of 1896	752	file.exe	27
PID 752 wrote to memory of 1896	752	file.exe	27
PID 752 wrote to memory of 1896	752	file.exe	27
PID 752 wrote to memory of 1896	752	file.exe	27
PID 752 wrote to memory of 1896	752	file.exe	27
PID 752 wrote to memory of 1896	752	file.exe	27
PID 1896 wrote to memory of 1792	1896	file.tmp	28
PID 1896 wrote to memory of 1792	1896	file.tmp	28
PID 1896 wrote to memory of 1792	1896	file.tmp	28
PID 1896 wrote to memory of 1792	1896	file.tmp	28
PID 1792 wrote to memory of 1704	1792	LitFiles137.exe	29
PID 1792 wrote to memory of 1704	1792	LitFiles137.exe	29
PID 1792 wrote to memory of 1704	1792	LitFiles137.exe	29
PID 1792 wrote to memory of 1704	1792	LitFiles137.exe	29

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:752
- C:\Users\Admin\AppData\Local\Temp\is-L7KSI.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-L7KSI.tmp\file.tmp" /SL5="$60122,1059945,212992,C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1896
- - C:\Program Files (x86)\Split Files\LitFiles137.exe
    "C:\Program Files (x86)\Split Files\LitFiles137.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1792
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\HgkMv96G.exe
      4⤵
      Executes dropped EXE
      PID:1704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\Split Files\LitFiles137.exe

Filesize
1.8MB

MD5
e479acfa3c4ce2e9ddeca5382749b16d

SHA1
2468679a53620613ba5879e8d048f651dbccba35

SHA256
098c835d692addb7cbd38a9ea3778af0ef1f74ff8375536ee1070e2279694176

SHA512
35fe1bd0ce16cd8df3f986204b4cb6d14f48d6576bbebb6bd6261bb422371330e0c8a3668ec67b76863bc32d1c802af891b477b80bc53f37b42b81edb083c731

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-L7KSI.tmp\file.tmp

Filesize
695KB

MD5
415533bb40980951c966665cff9e2fe7

SHA1
fce396c8fa01876dd008f22c8be9a9b706f4aaec

SHA256
f688364bb17f03e53de641e7a0b0efefe30ac155fa9fa414a2150204ed9d3734

SHA512
3a8f88fa83e9f8be96fc9a0e8b47536455f50b1c511210d98fa178444b1e5ad1943cc3000e869f6dba4c782b48a3538d0b52d5e29ce3a692636aefc0e52083ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-L7KSI.tmp\file.tmp

Filesize
695KB

MD5
415533bb40980951c966665cff9e2fe7

SHA1
fce396c8fa01876dd008f22c8be9a9b706f4aaec

SHA256
f688364bb17f03e53de641e7a0b0efefe30ac155fa9fa414a2150204ed9d3734

SHA512
3a8f88fa83e9f8be96fc9a0e8b47536455f50b1c511210d98fa178444b1e5ad1943cc3000e869f6dba4c782b48a3538d0b52d5e29ce3a692636aefc0e52083ae

Download Submit
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\HgkMv96G.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
\Program Files (x86)\Split Files\LitFiles137.exe

Filesize
1.8MB

MD5
e479acfa3c4ce2e9ddeca5382749b16d

SHA1
2468679a53620613ba5879e8d048f651dbccba35

SHA256
098c835d692addb7cbd38a9ea3778af0ef1f74ff8375536ee1070e2279694176

SHA512
35fe1bd0ce16cd8df3f986204b4cb6d14f48d6576bbebb6bd6261bb422371330e0c8a3668ec67b76863bc32d1c802af891b477b80bc53f37b42b81edb083c731

Download Submit
\Users\Admin\AppData\Local\Temp\is-KFKCF.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-KFKCF.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-KFKCF.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-L7KSI.tmp\file.tmp

Filesize
695KB

MD5
415533bb40980951c966665cff9e2fe7

SHA1
fce396c8fa01876dd008f22c8be9a9b706f4aaec

SHA256
f688364bb17f03e53de641e7a0b0efefe30ac155fa9fa414a2150204ed9d3734

SHA512
3a8f88fa83e9f8be96fc9a0e8b47536455f50b1c511210d98fa178444b1e5ad1943cc3000e869f6dba4c782b48a3538d0b52d5e29ce3a692636aefc0e52083ae

Download Submit
\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\HgkMv96G.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/752-54-0x0000000075841000-0x0000000075843000-memory.dmp

Filesize
8KB

Download
memory/752-65-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/752-55-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/1792-73-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/1792-71-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/1792-70-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/1792-78-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1792-82-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/1792-83-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/1896-69-0x00000000035F0000-0x00000000045B2000-memory.dmp

Filesize
15.8MB

Download
memory/1896-77-0x00000000035F0000-0x00000000045B2000-memory.dmp

Filesize
15.8MB

Download